Arithmetic progression Calculator

Calculates the n-th term and sum of the arithmetic progression with the common difference.

initial term a
common difference d
number of terms n
    1. n=1,2,3...

the n-th term an
    1.  
sum Sn
    1.  
Arithmetic progression
[1-3] /3Disp-Num
BACK NEXT
[1]  2018/02/24 05:57   Male / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
I want to write wassce 2018 sept
[2]  2017/06/24 04:32   - / - / - / Useful /
Comment/Request
Pls solve this for me: the first term of an arithmetic progression (AP) is -8. If the ratio of the 7th term is 5: 8, find the common difference of the AP
[3]  2012/10/29 21:27   Male / 20 years old level / High-school/ University/ Grad student / Very /
Purpose of use
don't know how to do it, plz help me...
Comment/Request
2+5+6+7+10+11+....nth find summation of nth term

BACK NEXT

Thank you for your questionnaire.
Sending completion

Back

To improve this 'Arithmetic progression Calculator', please fill in questionnaire.
Male or Female ?
Male Female
Age
Under 20 years old 20 years old level 30 years old level
40 years old level 50 years old level 60 years old level or over
Occupation
Elementary school/ Junior high-school student
High-school/ University/ Grad student A homemaker An office worker / A public employee
Self-employed people An engineer A teacher / A researcher
A retired person Others
Useful?
Very Useful A little Not at All
Purpose of use?
Comment/Request (Click here to report a bug).Bug report (Click here to report questionnaire.)
Calculation bug(Please enter information such as specific input values, calculation result, correct result, and reference materials (URL and documents).)
Text bug(Please enter information such as wrong and correct texts)
Your feedback and comments may be posted as customer voice.
送信